Sierra’s 18-2947-9 Thermostat Gasket is designed for use in OMC stern drive applications. It is interchangeable with GLM 33840, Mallory 9-60017, and OMC Stern Drive 310913. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in OMC stern drive applications
Interchangeable with GLM 33840, Mallory 9-60017, and OMC Stern Drive 310913
Includes one gasket per package
Each Sierra product meets or exceeds the original equipment part it replaces
